<?php
    $form = $this->form;
    
    $form->setAttribute('action', $this->url('module/process', array('controller' => 'index', 'action' => 'changeGroup')));
    
    $form->prepare();

    echo $this->form()->openTag($form);
    
    echo $this->formCollection($form);
    
    echo $this->form()->closeTag();
?>